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Finding the Fourth Proportional to 136,954.53, 188,986.48 and 75,698.14

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Solution

The fourth proportional to 136,954.53, 188,986.48 and 75,698.14 is: 104,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,954.53 : 188,986.48 = 75,698.14 : x
  2. Step 2: Convert to fraction form
    136,954.53/188,986.48 = 75,698.14/x
  3. Step 3: Cross multiply
    136,954.53x = 188,986.48 × 75,698.14
  4. Step 4: Simplify right side
    136,954.53x = 14,305,925,021.15
  5. Step 5: Solve for x
    x = 14,305,925,021.15/136,954.53
  6. Step 6: Final answer
    x = 104,457.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.